[MILLS] PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 249 
Tae Domestic Fowr. 
This bird is so different in many respects from the pigeon that I have 
thought it better to keep the notes | have taken apart. 
These observations were made on pure-bred Andalusian chicks, 
though many others have been studied. 
Diary. 
Chick A, hatched out some time before daylight is taken from the 
nest for the first time and tested at 4.30 p.m. 
It pecks three times in succession at a very small speck on the table 
and touches it each time. It strikes a crumb about + inch in diameter 
two or three times and then swallows it. 
Soon after it pecks at a smaller crumb, and takes it up and swallows 
it on the first attempt. 
It also pecks accurately at a dark spot on the table. 
Chick B, of about the same age (same hatch), picks up bread crumbs 
and particles of hard-boiled yolk of egg without missing. 
It also pecks at its own foot and the nail of one’s hand. 
Chick C, hatched only a little while since, seems feeble, creeps rather 
than stands, and is soon tired out. 
All those tested do, without doubt, hear as well as see. 
They easily follow the hand by the eyes at a distance of six inches. 
Can get the winking reflexes only when the eyes are ail but touched. 
A dark-coloured box, a piece of cotton and the hand are brought near 
the chicks in succession. The hand alone is followed, showing that it is 
the warmth that attracts. 
Solutions of salt and sugar applied to the tongue produce no decisive 
signs of the possession of taste. 
Two pigeons—the one a White Pouter, the other a Black Owl—were 
brought near to test whether the chicks would show any instinctive fear. 
They manifested none whatever ; on the contrary, they would nestle under 
them. 
The birds are tested again about twenty-two hours later. 
Previous to the first testing they had not been from under the hen, 
and since then they have been under her and nowhere else. 
The three chicks now peck well at all that is put before them, as 
oatmeal grains, canary-seed, etc. They peck readily and touch the 
objects successfully. The hardest objects are not always taken up at 
once, however. 
Some scales of dried lime-wash from the wall are placed before the 
chicks. In one case a chick pecks at a scale several times, then gets it 
into the mouth, but only to eject it. 
